Car-truck.



c. A. LINDSTRM.

GAR TRUCK,

APPLIUATION FILED r1:11.4.1911.

101 lllilllll c. A. LINDSTR'O'M.

GAR TRUGK. I APPLICATION FILED FIIBA, 19H.

Patented May 23, 191] 3 BHEETB-SHEET Z.

witnmeo C. A. LINDSTRM.

GAR TRUCK.

APPIJGATION FILED rEB.4,1911.

Patented May 23, 1911.

3 SHEETS-SHEET 3.

UNTED STATES PATENT OFFTCE.

CHARLES A. LINDSTRM, F PITTSBURG, ENNSYLVANIA, ASSIGNOR TO PRESSED STEELCAR COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION O F NEW JERSEY.

CAR-TRUCK.

Specication of Letters Patent.

`Patented May M, 1911.

Application tiled February 4, 1911. Serial No. 606,513.

To oZZ 'whom it may concern.:

Be it known "that I, Quilmes LIND- s'rnM, a citizen oli the lilnitedStates, residing at No. 13S Stratford avenue, Pittsburg, E. ll., in thecounty otl A\llegheny and State of lennsvlvania, have invented certainnew and use/ful Tniproveulcnts in Car- Trucks, ot' which the followingis a specification.

My 'invention relates to railway car trucks but more 'particularly totrucks of the type in Which the bolster is swingingly supported as bymeans o'lE links, hails, or the like, whereby the holsters and car bodyhave a limited sidewise swing or movement laterally of thc car when itpassies around a curve 'or over an uneven portion olI the tracks.

The principal object et my present'invention is to modify the usual andcustomary construction so as to .facilitate the removal of the bolsterand other parts.

Heretofore the bolster has generally been supported'directly by thetruck side :t'ranjies or transoms by means ot' links`or the like.,connected 'to the side frames or transoms and also to the bolster bymeans of pin or bolt connections, and an object of `my invention is todispense with said pin or bolt connections, thus reducing the number ofloose parts, the liability of these parts to work out of place and getlost, and also in a reduction of cost of manufacture of such trucks.

In the accompanying. drawings, forming a part of this specitication, andin which like reference characters indicate 'like parts throughout theseveral Iignres, I have illustrated the application of my invention to atruck of what is known as the Forl type.

Referring to the drawings: Figure 1- is a side elevation of a car truckin which my-invention is embodied. Fig. 2 shows in the left hand halt unend elevation, and in the right hand half a vertical section, takenat lapoint midway between the transoms, the

l adapted to support the springs, and also cngagethe lower ends ot thehanger arms.

In the construction i1lust1rated,1 indicates` the side "trame et' thetruck, formed ot. pressed steel, having a central opening for theaccommoiflz'xtion oli the projecting ends ot the springs 3, whichsupport the bolster 4, and openings 5 'lfor the accommodation o thepedcstals t3, t5. The side trames 1, are connected together' at therequired distance apart by transoms 7, 7, which are illustrated asflanged members formed of pressed steel. Y t

S designates thc springplank, and t), t) the spring plank end castinf-,sattached thereto and illustrated in detail in Figs. 8, t) and l0. The.spring plank is swingingly supported .by the hanger arms 1.0, which areprovided "at both thclr upper and lower ends with laterally projectingpivot bosses 11, ot the saine dimensions, which seat. in the concaverecesses in castings shown in Figs. 5-10. At the outer ends of theprojecting pivot bosses are projecting lips 1Q, which when in positionextend beyond the concave recesses in the said castings, and serve toprevent the portions 1l from becoming displaced froin their respectiverecesses. These pivot bosses provide for the suspension of the springplank and spring scat end castings in such a manner as to permit themembers-to swing transversely of the truck side frames in order that thetruck bolster, which is supported above the spring seats on the springs3, may artake of a lateral swinging motion relative to the truck ot'which it forms a part.

The projecting pivot bosses 11, of the so called hanger arms 10, are soshaped that when they are seated in the recessed bearings 13, incastings 24, the hanger is capable of a certain amount ,of swingingmotion. "hese castings are formed with a flat portion 14 and topiiange15, for the purpose of [attachment to the transoms 7, arcuate beared tobe secured to the end of the spring plank 8.

From the foregoing description it will be understood that the endsiandprojecting pivot bosses of the hangenanms l are alike and that the wholehanger arm is reversible end for end. l

It is evident that many changes might be resorted to in the relativearrangement of parts shown and described without departing from thespirit and scopenf my invention; "hence, I would have it understood thatI do not wish to @online myself to the exact construction andarrangement of parts shown, but,

Having fully described my invention what I claiih as neuw and desire tosecure by Letters Patent is Y l. An integral hanger arm for swingniotion trucks provided with projecting pivot bosses, and lips thereonto prevent displacement from their bearing supports; substantially asdescribed. g

Q. An integral hanger arm for swing motion trucks consisting of avertical portion, projecting pivot bosses at each end and on oppositesides thercot, and lips on the pivot bosses to prevent displacement fromtheir bearings; substantially as described.

3. In a. car truck,.the combination with reversible Z shaped hanger armspivotally connected to the transoms thereof, of a spring plank supportedby said hanger arms for endwise movement: transversely of the truck;substantially as described.

4. In a car truck, the combination with reversible Z shaped hanger armspivotally connected at their upper ends to the transoms thereof, and a-Sprin plank pivotally vconnected to the low-er en s of said hanger arms,of a truck bolster, and springs interposed between said truck bolsterand spring plank, whereby said truck bolster is supported with freedomfor limited en'dwise movement transversely of the truck.

5. In a car truck, reversible Z shaped' hanger arms pivoted thereto, aspring plank supported by said hanger arms, springs supported by saidspring plank, and a bolster

